griddata_visibility_reweight

ska_sdp_func_python.grid_data.gridding.griddata_visibility_reweight(vis, griddata, weighting='uniform', robustness=0.0, sumwt=None)

Reweight visibility weight using the weights in griddata. The fundamental equations are from https://casadocs.readthedocs.io/en/latest/notebooks/synthesis_imaging.html

Parameters:

• griddata – GridData holding gridded weights

• vis – visibility to be reweighted

• weighting – Mode of weighting, e.g. natural, uniform or robust

• robustness – Robustness parameter

• sumwt – Sum value of all weightings

Returns:

Visibility with imaging_weights corrected